FLOATING PARTICULATE MATERIAL TRAP APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a floating particulate material trap apparatus for collecting a floating particulate material in the air on a dust collecting electrode in a short time and a high concentration, and reducing a sampling time for various analyses.;SOLUTION: A discharge electrode 3 for charging the particulate material P and the dust collecting electrode 4 for applying a potential difference to the discharge electrode 3 are disposed within a trap vessel 1 into which the air is introduced. An electric field controlling electrode 5 is separately disposed between the electrodes, and forms an electric field focused to the dust collecting electrode 4. The charged particulate material P is guided to a narrow region of the dust collecting electrode 4 along the electric field, and can be collected in a short time and a high concentration.;COPYRIGHT: (C)2005,JPO&NCIPI